Zingakhale zachigololo komanso zoziziritsa kukhosi kunena kuti zaka 20 zapitazo, BMW idapanga njira yowonongera ulamuliro wa gulu la GT la Porsche, pogwiritsa ntchito nzeru zawo zokha komanso zapakati pa zisanu ndi chimodzi, koma sizingakhale choncho.Injini ya S54B32 idangosewera yachiwiri kwa 4.0L V8 yotsutsidwa kwambiri, koma iyi ndi nkhani ina.Chowonadi kwambiri chingakhale chakuti S54 idalengeza kutha kwa mzere wa kukuwa, banja lofuna mwachibadwa la M50/S50 la BMW inline sixes.
Unali kapangidwe koyambira koyambira koyambira kotentha: onjezerani bore ndi sitiroko ku injini yakale ndikuwonjezera ukadaulo womwe wangopezeka kumene mu mawonekedwe a Double VANOS (BMW lankhulani mosiyanasiyana cam pompopompo pama camshaft apawiri apamwamba, omwe amatha kusintha. kulowera pakati pa 70-130 ° ndi exhaust centerline kuchokera 83-128 °).Onjezani kampu kakang'ono pakuponderezana (mpaka 11.5:1), matupi amunthu payekha, otsatira nyimbo za rocker cam, Double VANOS yomwe yatchulidwa kale, ndi poto yopaka mafuta ya magawo awiri, ndi mawonekedwe apamwamba asanu ndi limodzi. Silinda idakhala chinthu chapadera kwambiri mmbuyo mu 2001 mpaka pano.
Kukhala ndi kutulutsa kwapadera kwa 104 horsepower-per-lita ndi stratospheric 8,000-rpm redline sikunamveke kunja kwa injini yapakatikati ya Italy yokhala ndi mipando iwiri yapakatikati kapena magudumu awiri aku Japan.Kukongola kwenikweni kwa injini iyi kumawonekera mukang'amba chilombochi.Othamanga omwe ali ndi CNC-profiled, zipinda zoyaka moto za CNC-milled, ma valve akuluakulu a alloy, ma valve otsogolera amkuwa, ndi alloy yolimba yolimba, zonse zimawoneka bwino panyumba pa injini ya mpikisano kusiyana ndi zomwe zinachokera pamzere wopangira.
Mndandanda wazinthuzi umakhala ngati wongopeka kwa anthu ambiri achikhalidwe cha canyon-carving, Ultimate Driving Machine purists.Mwamwayi, kwa tonsefe, kutsatsa kwapambuyo kumatipatsa zosowa zathu zomwe chikondi chimakula.Oyendetsa, othamanga, ndi othamanga nthawi amasangalala ndi zida zazikulu za turbo imodzi kapena ulemerero wa centrifugal-blower.Kukongola kwenikweni kwa kusinthidwa kwa injini ndi mphotho yomwe mumapeza, pamene mphero zokhala ndi mphamvu zambiri za volumetric zimalandira chikhumbo chosagwirizana ndi chilengedwe ndi zosinthidwa zoyenera.Chidutswa ichi chidzakuwongolerani, ochita masewera olimbitsa thupi, pokonzekera mapeto apamwamba kuti mukhale ndi mphamvu zowonjezera.
Poyambirira, titha kugawanitsa ndikuwunika mawonekedwe athu apakati.Kupewa kwapang'onopang'ono ndi mapaundi ochiritsa pano.Kuyika nthawi ndi ndalama zamtunduwu m'masewera osatheka kungakhale kulakwitsa kwakukulu.Ngakhale S54 ilibe mbiri ya ming'alu, kutenga nthawi yoyeretsa, kuyang'ana m'maso, ndikuyesa kukakamiza ma jekete amadzi ndi masewera oyenera.
Zomwe simukuzidziwa zitha kuvulaza inu ndi chikwama chanu.Ndikofunikira kwambiri kuyesa kuyika mutu kwa silinda yanu kuti muwonetsetse kuti ndikoyenera kupeza ntchito yodula, yozama yomwe ikubwera.
Mukatha kuyimba kuti mazikowo ndi otheka, ndi nthawi yowunika zolinga zanu.Kumangaku kumaphatikizapo galimoto yoyendetsa galimoto ya E36-chassis, yogwiritsira ntchito BMW yochepa-block, yonse yodyetsedwa ndi centrifugal Rotrex supercharger.Kugwiritsa ntchito block short-block kumapangitsa kuti pakhale vuto laling'ono chifukwa pisitoni yoyambirira siyimatsitsimutsidwa mokwanira kuti igwire ntchito yonse ya VVT pomwe pali ma valve akulu omwe amagwiritsidwa ntchito kumbali yolowera.
Pakumangaku tidasankha mavavu amtundu wa OEM (35mm) okhala ndi nitrided ndi 31.5mm (1mm oversize) Mavavu otulutsa a Inconel;onse mu single keeper groove kutembenuka kosiyanasiyana.Ma camshaft akulu akulu a VAC Motorsports-sourced Schrick "Forced Induction" komanso kupsopsonana kwa rev limiter mu mpikisano wothamanga kumafuna kuwongolera koyenera kwa ma valve.Ma valvesprings olimba apawiri okwera kwambiri ochokera ku Supertech Performance pamodzi ndi zosungira zofananira za nthenga za titaniyamu zidagwiritsidwa ntchito.
S54 imagwiritsa ntchito chida chapadera cha BMW, chotsatira chala chala chomwe chili pamtengo wa rocker.Izi zimapereka mathamangitsidwe otsegulira ma valve ndi kuchulukitsa kwa rocker, koma, malinga ndi ena, zitha kukhala zovuta kuvala.Tawona bwino kugwiritsa ntchito WPC Chithandizo pa OEM rocker otsatira, ngakhale ena angasankhe zokutira DLC.
Ndi magawo omwe adayikidwa, tsopano titha kuyandikira mndandanda wazinthu zomwe titha kuzilemba mu shopu yamakina.Ngakhale wothamanga wa S54 ali ndi mbiri ya CNC, pali madera ang'onoang'ono omwe angasinthidwe, monga mbiri yapampando ndi m'mimba mwake.Doko lotulutsa mpweya ndi liwiro lalitali, logawanika, lokhala ngati D, lomwe limapangidwira kuti liwononge mpweya wokhazikika, womwe umagwiritsidwa ntchito kwambiri ndi RPM.Ntchito ya mbiri, monga kuwongola wothamanga, ipeza phindu pano.Mawonekedwe anthawi zonse a ma valve otsogolera amagwirabe ntchito pakusintha kutentha, kusindikiza ma valve, komanso moyo wautali.Maupangiri a valve a S54s ayenera kuyankhidwa ngati pakufunika.
Pambuyo pojambula ndi kuvala, timayang'ana kuti tizitha kusalaza zizindikiro zakuthwa za zipinda zoyaka.Timatsimikiziranso kufanana kwa volumetric ndi burette.Chisamaliro chachikulu chiyenera kulipidwa pazithunzi zapampando, chifukwa cha kuwonjezeka kwa kukula kwa valve pa utsi.Mpando wa valavu umagwira ntchito ziwiri zofunika: kumiza kutentha kwa valavu mu jekete lamadzi, ndikupereka kusintha kwa doko kudyetsa chipinda choyaka moto mpweya wathu wamtengo wapatali (komanso nthawi zambiri wozizira).
Mbiri yapampando imatha kutsatiridwa ndikupukusa pamanja kuti mutsimikizire mawonekedwe olumikizana bwino pampando ndi valve.Ntchito ya valavu ikayang'aniridwa ndikuyesedwa, sitepe yotsatira ndikuwunika kwa mphero ndi kuyang'ana kwa flange komwe PCD yozungulira imapindika "six ndi nines" kuti ikhale yosalala komanso yosalala.Kuwunika kwa gawo lomaliza kumachitika panthawiyi musanamenye makina ochapira.Tikakhala ndi zida zoyera komanso zoyenera, timasintha ma valve.Timatsatira zomwe wopanga cam amapangira ndikumaliza msonkhano womaliza ndikuwunika komaliza.
Tisanadule chip chimodzi, tiyenera kuyala ndikuyesa zolinga zathu zonse.Miyezo yolowera ndi yotulutsa ndi 35mm ndi 31.5mm motsatana.Cholinga chathu chodyera ndi osachepera 85-peresenti ya 35mm - kapena osachepera 29.75mm mmero wapakhosi m'thumba pakati pa mpando ndi doko.Cholinga cha utsi ndi pafupi 90-peresenti ya 31.5mm - kapena 28.35mm - mmero wapakhosi.
Ambiri angazindikire mchitidwe wa chidwi anapatsidwa utsi mu ntchito iyi;lolani izi zitsimikizire kufunikira kwake pakuchita bwino kwa volumetric.Kumbukirani kuti mainjiniya ku Munich adathera nthawi yawo yambiri pazakudya.Tidayika mutu wa silinda mu makina a mpando wa valavu ya Serdi ndikugwiritsa ntchito choyikapo cholumikizira kuti tipeze kukula kwa mmero.Timafunikira muyeso uwu tisananyamule othamanga.Zimatipatsa kuthekera kophatikizana ndi manja ma machining marks kapena seams zosiyidwa ndi rotary throat insert komanso.
Kudulira mipando yowunikira kumathandiza kupanga thumba la mmero.Ngakhale kukula kwapakhosi koyenera kumakambidwabe, palibe kutsutsana kuti kuwongolera chiŵerengero chake ndi chinthu chofunikira kwambiri pakuwongolera kuyenda konse.
Gawo lotsatira silikufuna madzi amadzimadzi kapena kulemba.Madoko olowera amayalidwa ndi O-ring groove ndipo zotulutsa zimatha kukhala zazikulu kwambiri kuti zigwirizane ndi alembi ndi madoko.Chifukwa chake, chidziwitso ndi luntha ndi maluso awiri omwe amakwiyitsa chopukusira chamanja chokhazikika.
Madera akulu kwambiri opanga chip ndi mawonekedwe a D-mwezi wa theka la doko lotayirira.Timagaya, kuwongola, ndi kukokomeza mawonekedwe a D.Zosapitilira pafupifupi 2mm zochotsa pamakoma adoko ziyenera kukhala zokwanira pazogwiritsa ntchito zambiri zosakwana 1,100 whp.Mphepete zakuthwa ndi zogawanitsa pakudya zimalandira kusalaza ndi mphuno ya ng'ombe ndi mpukutu wosavuta wa 80-grit cartridge.
Kamodzi kambiri, mpweya umalandira 80-grit wotsatiridwa ndi 120-grit.Timatsatira ndikuwongolera pang'ono pang'onopang'ono kuti tigwetse kapangidwe ka kaboni.Chipinda choyaka moto chimalandira massaging omwewo monga kutulutsa, kugwetsa malo okwera ndi ma burrs kuti apewe kuyatsa kapena kuwotcha.
Kupititsa patsogolo kwa doko lotulutsa mpweya kuchokera ku chippy kupita ku poterera.Doko lotulutsa mpweya limapeza ntchito yochotsa zinthu zambiri ndikukonzanso pamutu wa S54 womwe umayenera kuwona kukwera.
Kujambula mipando ya valve ndi njira ina yomwe ambiri amaona kuti ndi "luso lakuda".Sizina kanthu koma physics ndi geometry.Chipinda choyaka cha S54's compact 33cc chimagwiritsa ntchito pulagi ya 12mm spark plug yomwe imapezeka kwambiri panjinga zamoto kuti igwirizane ndi ma valve omwe tawatchulawa.
Potsatira mutu wophatikizika, koma wothamanga kwambiri, tidasankha zodula zokhala ndi ma angle 5 komanso mipando yozungulira, zomwe zikupezeka ku Goodson Machine supply.Odula onsewo adatipatsa mpando wowoneka bwino wa 1mm, mpando wa digirii 45, wolumikizidwa ndi mabala osinthika bwino, mkati ndi kunja kwa mbale.
Ngati mukugwiritsa ntchito ma valve titaniyamu kapena kuthamanga kwambiri pamahatchi, muyenera kuganizira mpando wamkuwa ngati Moldstar90 kapena zofanana (samalani ndi carcinogenic, beryllium alloys).Timamaliza QC ndi ntchito yapamanja, pogwiritsa ntchito mawonekedwe akale, abwino a clover kuyang'ana mphete yathu yosokoneza.Imaperekanso nkhope yosweka bwino yosweka kuti mupewe kusintha kwakukulu pakusintha kwa valve.
Njirazi zimangoyenda bwino ndi maupangiri ozungulira komanso oyeretsedwa bwino.Izi zimayankhidwa pazomwe zimafunikira, makamaka kuchokera kumayendedwe okwera kwambiri komanso osakonza bwino.Kalozera woyenerera wolowa m'malo ndi gawo la copper-manganese lomwe likupezeka ku Supertech Performance.Kumbukirani, muzochitika izi, kukhazikika ndi mfumu.
Popanda zomangira zochulukirapo, timatha kuwongoka ndikuwongolera zomwe zimalowetsa ndikutulutsa ma flanges angapo pamanja.Amapereka malo osalala komanso osalala amtundu wa gasket watsopano pakati pa mutu wa silinda ndi zobwezeredwa.Mutu wa silinda umagwedezeka ndikuwongolera bwino tisanachotse .002-.003 inch per-pass pa mphero ya Rottler yokhala ndi PCD.Izi zimasiya kutha kosalala, MLS- kapena copper-head gasket, pakati pa 30s (Ra) kumaliza.Zipinda, m'mphepete mwa madoko, ndi m'mphepete mwa sitima zakunja zimachotsedwa ndi fayilo yozungulira yamafuta asanatulutse tchipisi.
Makina owoneka bwino a Rottler okhala ndi zida za diamondi za polycrystalline amasiya magalasi a utawaleza pamutu wa silinda.
Panthawiyi, kupanga tchipisi kwatha ndipo ndi nthawi yoti titsuke zovutirapo zathu ndi kusefukira.Mabuleki oyera kapena zosungunulira - zodyetsedwa ndi udzu - ndi mpweya woponderezedwa zimatha kuchotsa zinyalala pamalo olimba.Mukakhala otetezeka ndi malo olimbawo, ndi nthawi yoti muthamangitse zidutswa zathu zonyezimira za aluminiyamu kudzera mu makina ochapira.
Mitundu iwiri yamakina imapereka kuyeretsa kothandiza kwambiri: makabati opopera amadzi otentha kwambiri kapena kumiza kwa ultra-sonic.Kwa ife ndi yakale yomwe opareshoni yake ikufanana ndi ya chotsukira mbale chachikulu pa ma steroids.Akatsukidwa ndi chotsukira chothamanga kwambiri, chotentha, komanso chowotcha pang'ono, zopangirazo zimalandira madzi otsuka kuchokera papaipi ya mafakitale ndi mphuno mpaka zotsalira za sopo zitachoka.Masitepewa amatsatiridwa ndi mpweya woponderezedwa kuti uume chinyezi chilichonse chotsalira.
Kuyeretsa kolimba kotsatiridwa ndi kuyang'anitsitsa bwino musanayambe kunyoza ndi sitepe yofunika kwambiri yomwe sitiyenera kuinyalanyaza.
Mutu wa S54 umatengedwera ku benchi yolumikizira yoyera yokhala ndi tebulo lofewa la rabara kuti muteteze mphero kuti zisakanda.Apa ndi pamene zonse buku ndi zochitika zimatisunga ife pa njira yowongoka ndi yopapatiza ya mise en place kulondola.Timakonda kuyala ma valve, mipando ya ma valve-spring, akasupe, zosungiramo, ndi maloko otembenuza a single-groove okonzedwa pa benchi ngati mapangidwe apamwamba pabwalo lankhondo.Chilichonse chikakhala m’malo mwake, n’zosavuta kuona chimene chikusowa.
Apa mutha kuwona mavavu otengera kukula kwa OEM okhala ndi zokutira zawo za nitride, pamodzi ndi mavavu otulutsa a 1mm ochulukirapo a Inconel.Chinsinsi cha kupindula kwakukulu pakugwiritsa ntchito kumeneku ndikutulutsa mpweya womwe wagwiritsidwa ntchito mwachangu komanso moyenera momwe mungathere.
Kunyoza mutu wa cylinder pokhazikitsa chilolezo cha valve ndi sitepe yotsatira;mutha kusinthanso ma valve pa injini ngati ikuyenerani.Timaona kuti sikusokoneza kwambiri kuyimba chingwecho musanayambe kudzipereka kwa mutu wa gasket.Pamasitepe awa, timagwiritsa ntchito akasupe opepuka opepuka m'malo mwa akasupe apawiri apamwamba kuti azitha kuseka.Kumbukirani kuti kulephera kutsatira malangizo owongolera kungakupangitseni mavavu oyaka, mphamvu zochepa, phokoso la valve, kapena zotsatira zina zochititsa manyazi.
Schrick Camshafts amafuna kuti ma valve alowe ndi .25mm (.010 inch) ndi utsi kuti agwiritse ntchito ndi kugaya kwawo.BMW imayitanitsa chilolezo cha .18-.23mm (.007-.009 inchi) ndi .28-.33mm (.011-.013 inch) chilolezo, pakudya ndi kutulutsa motsatana.Mogwirizana ndi mutu wanjinga yamoto, Wiseco amapanga 8.9mm OD shim kit ya Husqvarna, KTM, ndi Husaberg yomwe imakwaniranso S54: P/N: VSK4.Inu oyeretsa kunja uko angakhale oyenerera bwino kwa BMW P / N: 11340031525. Ngati inu (kapena makina anu) munali pa mpira panthawi yodula mpando, kuyambira pakati pa shim makulidwe adzagwira ntchito bwino kwa inu.
Torque yoyenera pazipewa za cam ndiyofunikira kuti muyike bwino lash ya valve.Kuchita izi kuchokera mu injini kungapangitse moyo kukhala wosavuta mwakuthupi, ndipo ngati mukukumana ndi vuto, sikutanthauza kuti muchotse mutu wa silinda pa chipika.
Miyendo ya valve imalandila luba ya Torco pamitengo yawo ndipo amafufuzidwanso ngati akukwanira pamene akulowetsedwa muzowongolera za valve.Mipando ya Valvespring imayikidwa pamwamba pa akasupe ndipo kompresa ya pneumatic imatsamira mu chosungira cha titaniyamu.Izi zimachitika nthawi 23 mpaka ma valve, akasupe, zosungira, ndi zotsekera zitayikidwa.
Kuyika shaft ya rocker ndikotsatira, ndipo ziyenera kudziwidwa kuti pa S54, shaft yotulutsa mpweya imakhala ndi bowo lopaka mafuta lomwe limayenera kudyetsedwa kuchokera kuchipinda chachikulu chamafuta pamutu.Kulephera kuyanjanitsa dzenjelo moyenera kumabweretsa camshaft yathyathyathya ndi otsatira.Otsatira zala ndi mfundo yotsutsana ndi ena omwe amapezeka pa intaneti;Ndipewa mkangano uliwonse pongonena kuti pali masitaelo atatu ovomerezeka a otsatira zala kuti agwiritsidwe ntchito ndi ma camshaft akulu ndi magwiridwe antchito apamwamba a RPM: Otsatira a Schrick Performance DLC (P/N: SCH-CF-S54-DLC), DLC yokutira OEM otsatira BMW (P/N: 11337833259, kukhudzana Calico zokutira) kapena WPC anachitira OEM BMW otsatira (P/N: 11337833259, kukhudzana WPC Chithandizo).
Otsatira a chalawa a WPC awa ndi opangidwa ndi microtextured kuti asunge mafuta ndikuphatikizidwa ndi WPC's proprietary blend of metal-treatment zitsulo.
Mafuta oyendetsa galimoto amapanga camshaft yabwino kwambiri, yonyezimira komanso mafuta onyamulira;onetsetsani kuti mukugwiritsa ntchito izi mowolowa manja ku ma lobes ndi nkhope zotsata zala.Onetsetsani kuti mwapaka lubo lopepuka pamalo onyamula camshaft ndi magazini musanayike zipewa ndi mtedza.Zolemba ndi ma torque zili ndi inu, chifukwa ngati mukuchita izi, muyenera kukhala ndi buku lokhala ndi chidziwitsocho.
Masamu adawonetsa kuti tidzapeza 2-2.5 psi kuchokera kukusintha kwa kupuma kupita kumutu wa silinda.Pokonzekera kuchulukitsidwa kwa mphamvu ya volumetric, tinali ndi ma pulleys akuluakulu a nthiti zisanu ndi chimodzi odulidwa ndi chitsulo ndiyeno zinki wokutidwa kuti asagwirizane ndi okosijeni.
Pamapeto pake, sensa ya MAP inasonyeza kuwonjezeka kolimba kwa 3 psi, kuchititsa kuti mpweya wa Rotrex ukhale wapamwamba pakati pa 14.5 ndi 17 psi, malingana ndi mlengalenga wa tsiku ndi tsiku.Maulendo opita ku Rotrex Impeller speed calculator adawonetsa kuti titha kuwongolera pang'ono chowongolera chathu cha C38-92.Kupititsa patsogolo kapumidwe kophatikizana ndi pulley yayikulu idapeza phindu la 156whp ndi 119 lb-ft of torque.
Pali zopindulitsa zambiri zamahatchi zomwe ziyenera kukwaniritsidwa m'mainjini ambiri opanga, ngakhale omwe amawoneka kuti ndi ovuta kwambiri kapena okwera mtengo.Luso loona ndikupeza malire ochepetsa kubweza m'dongosolo lililonse, musanakumane ndi khomalo ndi nthawi ndi ndalama.Ndikuyembekeza kubwereranso ku mutu uwu wa kayendedwe ka mpweya ndi kukakamizidwa mokakamiza muzochitika zamakono zapakati pa sikisi posachedwapa.Nthawi imeneyo ikadzafika, mudzakhala ndi zambiri zoti mugawane nanu.
Kupuma bwino kumabweretsa akavalo akulu.Imeneyi ndi njira yokhotakhota bwino kwambiri kuti muwonjezere pang'ono komanso mutu wa silinda wabwino kwambiri.
Pangani kalata yanu yamakalata ndi zomwe mumakonda kuchokera ku Turnology, molunjika kubokosi lanu, KWAULERE!
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Nthawi yotumiza: Jun-12-2020